Regularized representation of bacterial hydrodynamics
Regularized representation of bacterial hydrodynamics
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DOI：
10.1103/physrevfluids.5.093101
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发表时间：
2020-09
影响因子：
2.7
通讯作者：
K. Ishimoto;E. Gaffney;B. J. Walker
中科院分区：
文献类型：
--
作者：
K. Ishimoto;E. Gaffney;B. J. Walker
流体流动诱导的鞭毛细菌游泳者往往被建模为一个简单的力偶极子，在远场有效。一个精致的游泳者表示，利用正则化的奇点，保持简单，同时捕捉附近的游泳者的复杂流场的细节。然后考虑一个简单的模型系统，表明这些细微差别的流体动力学是显着的细菌相互作用。
Fluid flows induced by a flagellated bacterial swimmer are often modeled as a simple force dipole, valid in the far field. A refined swimmer representation is presented that makes use of regularized singularities, retaining simplicity while capturing details of the complex flow field near the swimmer. A simple model system is then considered, demonstrating that these nuanced hydrodynamics are significant for bacterial interactions.